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The MC14518B dual BCD counter and the MC14520B dual binary counter are constructed with MOS P-channel and N-channel enhancement mode devices in a single monolithic structure. Each consists of two identical, independent, internally synchronous 4-stage counters. The counter stages are type D flip-flops, with interchangeable Clock and Enable lines for incrementing on either the positive-going or negative-going transition as required when cascading multiple stages.
Each counter can be cleared by applying a high level on the Reset line. In addition, the MC14518B will count out of all undefined states within two clock periods. These complementary MOS up counters find primary use in multi-stage synchronous or ripple counting applications requiring low power dissipation and/or high noise immunity.

Brand/Series	4000B Series
Circuit Type	Low-Power Schottky
Counter Type	Binary
Current, Supply	600 μA
Dimensions	19.55 x 6.85 x 7.74 mm
Function Type	4-Stages
Height	0.305" (7.74mm)
Length	0.769" (19.55mm)
Logic Family	MC145
Logic Function	Counter
Logic Type	CMOS
Mounting Type	Through Hole
Number of Circuits	Dual
Number of Pins	16
Operating Voltage Range	-0.5 to 18 V
Package Type	PDIP
Reset Type	Synchronous
Supply Voltage	3 to 18 V
Temperature, Operating, Maximum	+125 °C
Temperature, Operating, Minimum	-55 °C
Temperature, Operating, Range	-55 to +125 °C
Triggering Type	Positive-Edge/Negative-Edge
Width	0.27" (6.85mm)
关键词

Brand/Series 4000B Series  ON Semiconductor Brand/Series 4000B Series  Counters & Shift Registers Brand/Series 4000B Series  ON Semiconductor Counters & Shift Registers Brand/Series 4000B Series   Circuit Type Low-Power Schottky  ON Semiconductor Circuit Type Low-Power Schottky  Counters & Shift Registers Circuit Type Low-Power Schottky  ON Semiconductor Counters & Shift Registers Circuit Type Low-Power Schottky   Counter Type Binary  ON Semiconductor Counter Type Binary  Counters & Shift Registers Counter Type Binary  ON Semiconductor Counters & Shift Registers Counter Type Binary   Current, Supply 600 μA  ON Semiconductor Current, Supply 600 μA  Counters & Shift Registers Current, Supply 600 μA  ON Semiconductor Counters & Shift Registers Current, Supply 600 μA   Dimensions 19.55 x 6.85 x 7.74 mm  ON Semiconductor Dimensions 19.55 x 6.85 x 7.74 mm  Counters & Shift Registers Dimensions 19.55 x 6.85 x 7.74 mm  ON Semiconductor Counters & Shift Registers Dimensions 19.55 x 6.85 x 7.74 mm   Function Type 4-Stages  ON Semiconductor Function Type 4-Stages  Counters & Shift Registers Function Type 4-Stages  ON Semiconductor Counters & Shift Registers Function Type 4-Stages   Height 0.305" (7.74mm)  ON Semiconductor Height 0.305" (7.74mm)  Counters & Shift Registers Height 0.305" (7.74mm)  ON Semiconductor Counters & Shift Registers Height 0.305" (7.74mm)   Length 0.769" (19.55mm)  ON Semiconductor Length 0.769" (19.55mm)  Counters & Shift Registers Length 0.769" (19.55mm)  ON Semiconductor Counters & Shift Registers Length 0.769" (19.55mm)   Logic Family MC145  ON Semiconductor Logic Family MC145  Counters & Shift Registers Logic Family MC145  ON Semiconductor Counters & Shift Registers Logic Family MC145   Logic Function Counter  ON Semiconductor Logic Function Counter  Counters & Shift Registers Logic Function Counter  ON Semiconductor Counters & Shift Registers Logic Function Counter   Logic Type CMOS  ON Semiconductor Logic Type CMOS  Counters & Shift Registers Logic Type CMOS  ON Semiconductor Counters & Shift Registers Logic Type CMOS   Mounting Type Through Hole  ON Semiconductor Mounting Type Through Hole  Counters & Shift Registers Mounting Type Through Hole  ON Semiconductor Counters & Shift Registers Mounting Type Through Hole   Number of Circuits Dual  ON Semiconductor Number of Circuits Dual  Counters & Shift Registers Number of Circuits Dual  ON Semiconductor Counters & Shift Registers Number of Circuits Dual   Number of Pins 16  ON Semiconductor Number of Pins 16  Counters & Shift Registers Number of Pins 16  ON Semiconductor Counters & Shift Registers Number of Pins 16   Operating Voltage Range -0.5 to 18 V  ON Semiconductor Operating Voltage Range -0.5 to 18 V  Counters & Shift Registers Operating Voltage Range -0.5 to 18 V  ON Semiconductor Counters & Shift Registers Operating Voltage Range -0.5 to 18 V   Package Type PDIP  ON Semiconductor Package Type PDIP  Counters & Shift Registers Package Type PDIP  ON Semiconductor Counters & Shift Registers Package Type PDIP   Reset Type Synchronous  ON Semiconductor Reset Type Synchronous  Counters & Shift Registers Reset Type Synchronous  ON Semiconductor Counters & Shift Registers Reset Type Synchronous   Supply Voltage 3 to 18 V  ON Semiconductor Supply Voltage 3 to 18 V  Counters & Shift Registers Supply Voltage 3 to 18 V  ON Semiconductor Counters & Shift Registers Supply Voltage 3 to 18 V   Temperature, Operating, Maximum +125 °C  ON Semiconductor Temperature, Operating, Maximum +125 °C  Counters & Shift Registers Temperature, Operating, Maximum +125 °C  ON Semiconductor Counters & Shift Registers Temperature, Operating, Maximum +125 °C   Temperature, Operating, Minimum -55 °C  ON Semiconductor Temperature, Operating, Minimum -55 °C  Counters & Shift Registers Temperature, Operating, Minimum -55 °C  ON Semiconductor Counters & Shift Registers Temperature, Operating, Minimum -55 °C   Temperature, Operating, Range -55 to +125 °C  ON Semiconductor Temperature, Operating, Range -55 to +125 °C  Counters & Shift Registers Temperature, Operating, Range -55 to +125 °C  ON Semiconductor Counters & Shift Registers Temperature, Operating, Range -55 to +125 °C   Triggering Type Positive-Edge/Negative-Edge  ON Semiconductor Triggering Type Positive-Edge/Negative-Edge  Counters & Shift Registers Triggering Type Positive-Edge/Negative-Edge  ON Semiconductor Counters & Shift Registers Triggering Type Positive-Edge/Negative-Edge   Width 0.27" (6.85mm)  ON Semiconductor Width 0.27" (6.85mm)  Counters & Shift Registers Width 0.27" (6.85mm)  ON Semiconductor Counters & Shift Registers Width 0.27" (6.85mm)